Air valve and the like



Patented "July 27, i937 PATENT OFFICE i 72,088,248 i l `am VALVE k `IraD. Perry, Muskegon,ltiicli'.A Application `Septeniber 14,*` 1935, SerialNo. 40,593

a a scimmia.` (crise-112i a rI'h'is inventionfrelates` to improvementsin air i `valves particularly intended for 'use in connectionwithinflated articles such as automobile tires, foot-balls;basket-balls'and any such articles as require inflation, but it will appear that thefea` .tures of the invention are. not limited to these or` any other`particular classes of service and requires sealing against the passageof air; theredevices, except as I may do so in the claims.

One object of the invention is to provide a valve arrangement `infwhichthere isionly` one place that one-half. Y Y Another object of theinvention isto provide a `valve that `can be. manufactured much cheaperthan those now on the market. i

Another object of the invention is to provide' by lesseningrthe chancesof leakage by at least a valve arrangementthat can be assembled easily fwithout any chance of the parts being assembled wrongly.` I I Anotherobjectsof the invention is to provide a I `valve arrangement that willprovide for the pressure of the air in the inflated article to closethe` valve against appear from a detailed description of the same,

which consists in the features of construction and combinations of partshereinafter described and claimed. v

In the drawing:

Fig. 1 is a longitudinal sectional View of my l improved `valve andvalve `stern assembly, and

Fig. 2 is an enlarged fragmentary sectional view of a slightly modiedform of the valve assembly shown in Fig. 1.

In referring to the drawing hereafterlike parts `Willbe numbered withlike numbers. `Referring first to Fig. 1 the main body portion I of thevalve is made from a rubber composition and isprovided with a flangeportion 2. 'Ihe bottom or` inner end of the valve body is provided witha V-shaped groove for the attaching of the valve `to the inner-tube ofan automobile tire and is `subject matter of my patent applicationSerial No. 743,103. In the inner end of the valve body there is cored anair passage which extends throughout the entire length of the valve bodyand in the drawing is shown to be of two different sizes as at 3 and I.In the outer end of the valve there is moulded a metal insert suchinsert being shown at 5 in each of the figures.

knife edge as shown at I2 so that when the sharp is at once exertedagainst the valve I to force it tightly up'against the apex of the angle'of the of the proper size to enter thestandard airchuck to` trip thesame so that air Will oW therefrom into the article to be inflated andis of the ordinary kindnow'used in rubber stern valves, and is of themetal insert is formed with projecting rings 6A in order. to make moresurfacerfor the rubber vto adhere to. f Through the `entire length of`the metal insert 5 there is a passage 8 for air that is of the samediameter as` the cored rubber hole `that it matches and coincides with.The cored hole 4` at its ,outer end is decreasedtin size i and forms aV-shaped groove as at 1.I The inner part of this fV-shaped groove isslanted down# a ward until it meets the cored hole 3.` Thecored hole 3and the hole 8 in the insert are` of the same size and the two form aguide for `the stem 9 of the valve IIJ to slide upand down through.'I'he lower part Il ol.' the lstern 9 is enlarged `so as to fit, with asliding flt, the cored hole 3 thereby forming a guide to exactlyregister the sharp edge I2 of the valve IIJ with the apex of the angleof the neck I3 which is formed by the intersection of thesides I4` andI5 of the cored holel. The upper edge of the `Valve I0 is broughtY to asharp edge I2 isforced against the apex of the angle of the neck I3 apositive air tight seal is pro- I duced `thereby shutting ofi all airfrom' either passing in or out of the inflated article. The .30 bottompart of the `cored hole 4 is enlarged so as to receivethe enlarged headof the plug I1. 'I'he upper end of the plug I1 is tapered to aflat endas shown at I8 and has a cored hole I9'through it so that the airpressure ofthe inflated article neck I3 and thereby immediately closingand sealing the air passage 3 and stopping all passage of air throughsaid passage 3. The tapered part 20 of the plug I 1 is made long enoughto fit against the underside 2| of the valve I0 in a compressedcondition when the valve I 0 is closed thereby always exerting asuilicient upward pressure on valve Ill to keep the passage 3 completelyclosed against'the passage of air when the valve I0 is normally closed.When the inflatable arti;m cle is to be inflated with more air or whenair is to be flrst put into it the valve I0 is pushed open in theordinary way now in use and the air then passes down around the valvestem `9. The enlarged portion II of the stem 9 having been pusheddownfar enough to allow the air to pass through and past the valve I0into the chamber 23. From therethe air goes through the holes` The innerend 5 24 into the chamber 25 and on through the passage 2B into thearticle to be inflated. When inflation is taking place the tapered end20 is compressed enough to allow the valve Ill to open but theresiliency of the rubber plug I1 keeps a steady upward push against thevalve I0 so that when the air supply nozzle is taken from the valve stem9 the valve I0 immediately goes to its seat and thereby closes the airpassage and prevents the escape of any air.

Fig. 2 shows another form of valve in which, like Fig. 1, there are twoair seals. The apex 3| of the angle 32 is exactly in line with the edge33 of the ring i6 so that when the valve is closed the apex 3| fits theedge 33 and forms an air tight joint. The annular neck 34 is formed witha tapered side 35 and has a smaller angle, measured from a central linethrough the axis of the valve, than the side 36 of the valve I0. Theannular neck 34 has a flat surface 31 which is larger than the flatsurface 38 of the valve l0. When the valve I0 seats itself the annularneck 34 is squeezed up and into the space 33 of the valve l0 and therebyforms another air tight seal. The rest of the valve construction is thesame as in Fig. 1.

The metal insert 5 has no function to perform except to open the airchuck of the iniiating nozzle and could be dispensed with except forthat one purpose.

While I have herein shown and described only certain valve constructionsand embodiments of the features of my present invention, still I do notintend thereby to limit myself, except as I may do so in the claims.

I claim:-

1. A tire valve or the like including an elongated stem of one pieceyieldable material, said stem having a longitudinally extendingpassageway therethrough, the inner portion of which is of materiallygreater diameter than the outer portion, an inwardly facing valve seatof substantially V-shaped cross-section formed in the material of thestem at the upper end of the inner enlarged passageway 'and surroundingthe inner end of the outer passageway at the juncture of said portions,a plunger extending freely through the outer passageway portion and intothe enlarged inner passageway, a valve head carried on the inner end ofsaid plunger and having an outwardly facing annularly tapered rimadaptedto t and seat within the inwardly facing valve seat in the material ofthe stem and compress the material of the stem outwardly and radiallyagainst the valve plunger under pressure of the air in said innerenlarged passageway.

2. A tire valve or the like including an elongated stem of one pieceyieldable material, said stem having a longitudinally extendingpassageway therethrough, the inner portion of which is of materiallygreater diameter than the outer portion, an inwardly facing valve seatof substantially V-shaped .cross-section formed in the material of thestem at the upper end of the inner enlarged passageway and surroundingthe inner end of the outer passageway at the juncture of said portions,`a plunger extending freely through the outer passageway portion and intothe enlarged inner passageway, a valve head carried on the inner end'ofsaid plunger and having an outwardly facing annularly tapered rimadapted to fit and seat within the inwardly facing valve seat in thematerial'of the stem', a hollow plug of yieldable material carriedwithin said enlarged inner passageway and having bearing against. theinner. face of said valve head, the interior of saidplug being inconstant communication with the inner end portion of said enlargedpassageway, whereby the material of the ,stem surrounding the outerpassageway is compressed outwardly and radially against the valveplunger under pressure of air within said plug and inner enlargedpassageway.

3. A tire valve or the like comprising an elongated stem of yieldablematerial, said stern having an outer longitudinally extending passagewaywhich communicates with an inner passageway portion of materiallygreater diameter, a recessed inwardly facing valve seat formed in thematerial of the stem at the upper end of said enlarged passageway andproviding a yieldablel inwardly extending neck portion surrounding theinner end of the outer' passageway. a plunger adapted to extend freelythrough said outer passageway and through said neck portion and into theenlarged inner passageway, and a valve head carried at the inner end ofsaid plunger and: having an outwardly facing annularly tapered rimadapted to seat within said inwardly facing valve seat and receive andradially compress the material of the neck portion against the sides ofsaid plunger under pressure of the air in said enlarged passageway.

ma n. my.

